normalized_composition.hh

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// normalized_composition.hh: this file is part of the Vaucanson project.
//
// Vaucanson, a generic library for finite state machines.
//
// Copyright (C) 2005, 2006, 2008 The Vaucanson Group.
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
//
// The complete GNU General Public Licence Notice can be found as the
// `COPYING' file in the root directory.
//
// The Vaucanson Group consists of people listed in the `AUTHORS' file.
//
#ifndef VCSN_ALGORITHMS_NORMALIZED_COMPOSITION_HH
# define VCSN_ALGORITHMS_NORMALIZED_COMPOSITION_HH

# include <vaucanson/automata/concept/automata_base.hh>

// FIXME: The return type must be ComposedAutomaton (but we need a trait, composed_traits_automaton,
// wich will check if the two type are composable)
// Do a1 and a2 need to be the same type?
// INTERFACE: Automaton u_compose(const Automaton& a1, const Automaton& a2) { return vcsn::u_compose(*a1, *a2); }

namespace vcsn {

  template <typename S, typename T>
  void
  compose(const Element<S, T>& lhs,
          const Element<S, T>& rhs,
          Element<S, T>& ret);



  template <typename S, typename T>
  Element<S, T>
  compose(const Element<S, T>& lhs,
          const Element<S, T>& rhs);


  template <typename S, typename T>
  void
  u_compose(const Element<S, T>& lhs,
            const Element<S, T>& rhs,
            Element<S, T>& ret);

  template <typename S, typename T>
  Element<S, T>
  u_compose(const Element<S, T>& lhs,
            const Element<S, T>& rhs);

} // End of namespace vcsn.

# if !defined VCSN_USE_INTERFACE_ONLY && !defined VCSN_USE_LIB
#  include <vaucanson/algorithms/normalized_composition.hxx>
# endif // VCSN_USE_INTERFACE_ONLY


#endif // ! VCSN_ALGORITHMS_NORMALIZED_COMPOSITION_HH

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